Last month, we met Acrobatica Infiniti, the nerd circus. The acrobat collective has Jedi who juggle, Aquaman aerialists, bipedal B-Boy bactrosaurs and other acts, alliterative or not, that combine circus and nerd cultures.

It also has talented professionals who have dedicated their lives and bodies to an often unappreciated art form.

“I was about 18 and super-drunk and was trying to sign up for pole dancing classes online and accidentally signed up for trapeze instead,” said Julie Marshall, 22.

Marshall, already a dancer and performer, decided to roll with it. She went to the trapeze class, and once she got there, was sold.

“I dropped out of art school to join the circus, and you can imagine how excited my parents are,” she said.

She talks quickly, skittering like lightning through topics and the room. Red hair, blue eyes and an expressive face that flits from wide smiles to mock stage anger as she tells stories of her four years in Chicago’s circus community.

“Chicago’s a big hub for circus,” Marshall said.

She’s dressed identically to the tall man next to her. To get eyes on the troupe’s later-successful Kickstarter campaign, the nerd acrobats had come out in force, filling Wicker Park’s Geek Bar Beta with superheroes, Jedi, Doctors Who and, in the case of the identically dressed paired acrobatics partners, Captain Hammer and a groupie from “Dr. Horrible’s Sing-Along Blog.”

Marshall and Priz performed adagio at Geek Bar. Also known as partner acro, it’s paired acrobatics with Jim (the base) hoisting Julie (the flier) in the air where she balanced in elegant and physically taxing poses as they wandered the geek-themed bar.

“Different people call it different things,” Captain Hammer said.

If Julie is lightning, Jim’s thunder. She talks quickly, he laughs deeply. He’s tall and broad and charmingly smug, which he said isn’t so much a result of the Captain Hammer role as the reason he likes the Captain Hammer role.

When not doing circus, Priz, 36, is a martial artist and stunt man, appearing mostly in small independent movies, with the occasional blockbuster like “Divergent” and “Dark Knight.”

“Some of that, the tumbling and the body sense and the air sense stuff translates a little bit, but a lot of it is completely different,” he said.

For “Dark Knight,” he got off-screen smacked by Heath Ledger’s Joker and appeared on screen at Bruce Wayne’s fundraiser for Harvey Dent.